Improper Verification of Cryptographic Signature in Cisco SD-WAN vEdge Routers and Catalyst SD-WAN Manager (formerly SD-WAN vManage) - CVE-2021-1461

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Main Vulnerability Database Vulnerabilities #VU51232

Improper Verification of Cryptographic Signature in Cisco SD-WAN vEdge Routers and Catalyst SD-WAN Manager (formerly SD-WAN vManage) - CVE-2021-1461

Published: March 4, 2021


Vulnerability identifier: #VU51232
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1461
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to improper verification of digital signatures for patch images. A remote administrator can use an unsigned software patch to bypass signature checks and boot a malicious software patch image.


Affected software

Cisco SD-WAN vEdge Routers
Catalyst SD-WAN Manager (formerly SD-WAN vManage)

How to mitigate CVE-2021-1461

Install updates from vendor's website.

Cisco SD-WAN vEdge Routers - addressed in versions 18.4.5, 19.2.2, 20.1.1, 20.3.1, 20.4.1
Catalyst SD-WAN Manager (formerly SD-WAN vManage) - addressed in versions 18.4.5, 19.2.2, 20.1.1, 20.3.1, 20.4.1

External References

Related Security Bulletins